Abstract
Compact Vivaldi patch antenna with a parasitic meander line is presented in this paper. A PIN diode switch is used to connect and disconnect ultrahigh frequency band (UHF) with ultrawide bandwidth (UWB). The operating frequencies can be switched among different services, depending on the switching states (ON/OFF) to add the lower band when required. This antenna is suitable for portable DVB-T which extended from 450 MHz to 850 MHz receiver applications and the WLAN (Wireless Local Area Network) IEEE 802.11b,g (5.1–5.8) GHz frequency bands and WiMAX band (3.3–3.8) GHz. The measured reflection coefficient of the proposed antenna is compared with the simulated one; good agreement is observed. Also, simulated radiation pattern of the antenna is presented. All simulations are carried out using the EM commercial simulator, high frequency structure simulator (HFSS) ver.13.
Highlights
The rapid developments in broadband wireless communications and the great number of commercial and military applications necessitate new types of antennas which can support higher bit rates. 4G mobile terminals are gaining immense popularity thanks to their advanced and userfriendly features
According to the federal communication commission (FCC) ultrawide bandwidth (UWB) rulings the signal is recognized as UWB if the signal frequency band is from 3.1 GHz to 10.6 GHz or the signal bandwidth is more than 500 MHz [2]
The exponentially tapered slot antenna (ETSA) is a variation of the Vivaldi antenna, with the outer edge exponentially tapered, and it was introduced for the first time in [3]
Summary
The rapid developments in broadband wireless communications and the great number of commercial and military applications necessitate new types of antennas which can support higher bit rates. 4G mobile terminals are gaining immense popularity thanks to their advanced and userfriendly features. The rapid developments in broadband wireless communications and the great number of commercial and military applications necessitate new types of antennas which can support higher bit rates. Designing new compact antennas with good characteristics applied for 3G mobile terminals is quite necessary number of similar studies had been conducted so far [1]. An exponentially tapered slot antenna (ETSA) suitable for packaging and integration with other components is introduced and proposed for the UWB range with gain more than 5 dBi and reflection coefficient below −6 dB which represents VSWR
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